Cost
The destination charge is a standard charge for transporting the vehicle from its point of origin to the dealer. The MINI is substantially cheaper to get to the dealership than the Audi A4.
The MINI Cooper will save you money at the pump compared to the Audi A4.
The MINI Cooper is tremendously less pricey than the Audi regarding MSRP.
The Audi A4 will cost you a lots_of_money in gas every year compared to the MINI Cooper.
Utility
The MINI Cooper and the A4 can accommodate the same number of passengers.
Convenience
You'll definitely take the MINI Cooper for a fill-up about as often as the A4.
Comfort
While the front cabin in the MINI offers a bit more head room than the Audi, there really isn't much of a difference.
While the rear of the Audi provides a bit more head- and leg-room than the MINI Cooper, there really isn't much of a difference.
Dimensions
The Audi A4 is tremendously more bulky than the MINI Cooper.
Your wallet will hurt more every time you fill up the Audi than the MINI Cooper because of its larger tank.
The MINI Cooper fits in smaller parking spaces than the Audi.
The Audi A4's longer wheelbase will likely result in a smoother, more stable ride; on the flip side, the Cooper may give a nimbler feel in daily traffic.
Performance
Regarding horsepower, the Audi A4 packs quite a punch and will knock the MINI Cooper down a few rungs. On the other hand, bear in mind that high horsepower engines often command higher insurance premiums.
Handling
With their comparable turning circles, the Cooper and the Audi definitely handle roughly the same into and out of tight spots.
Drivetrain
The Audi A4's engine is significantly larger than the Cooper's. Keep in mind that more massive engines may use more gas than smaller ones.
Torque is roughly equivalent to acceleration, and in this respect, the A4 is tremendously more powerful than the MINI.
The Audi A4 packs quite a punch compared to the MINI Cooper in terms of torque, which is roughly equivalent to acceleration.
Warranty
The Audi A4 and the MINI Cooper have the same basic warranty.